812232 has 48 divisors (see below), whose sum is σ = 2281500. Its totient is φ = 260736.

The previous prime is 812221. The next prime is 812233. The reversal of 812232 is 232218.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 799236 + 12996 = 894^2 + 114^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (812233) by changing a digit.

812232 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1894 + ... + 2282.

2⁸¹²²³² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140750).

812232 is an abundant number, since it is smaller than the sum of its proper divisors (1469268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812232 is a wasteful number, since it uses less digits than its factorization.

812232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 423 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 812232 is about 901.2391469527. The cubic root of 812232 is about 93.3025181718.

It can be divided in two parts, 81223 and 2, that added together give a square (81225 = 285²).

The spelling of 812232 in words is "eight hundred twelve thousand, two hundred thirty-two".